1 /* 2 * Copyright (C) 2017 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package android.app.timezone; 18 19 import android.app.timezone.ICallback; 20 import android.app.timezone.RulesState; 21 import android.os.ParcelFileDescriptor; 22 23 /** 24 * Interface to the TimeZone Rules Manager Service. 25 * 26 * <p>This interface is only intended for system apps to call. They should use the 27 * {@link android.app.timezone.RulesManager} class rather than going through this 28 * Binder interface directly. See {@link android.app.timezone.RulesManager} for more complete 29 * documentation. 30 * 31 * {@hide} 32 */ 33 interface IRulesManager { 34 35 /** 36 * Returns information about the current time zone rules state such as the IANA version of 37 * the system and any currently installed distro. This method is intended to allow clients to 38 * determine if the current state can be improved; for example by passing the information to a 39 * server that may provide a new distro for download. 40 */ 41 RulesState getRulesState(); 42 43 /** 44 * Requests installation of the supplied distro. The distro must have been checked for integrity 45 * by the caller or have been received via a trusted mechanism. 46 * 47 * @param distroFileDescriptor the file descriptor for the distro 48 * @param checkToken an optional token provided if the install was triggered in response to a 49 * {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent 50 * @param callback the {@link ICallback} to receive callbacks related to the 51 * installation 52 * @return zero if the installation will be attempted; nonzero on error 53 */ 54 int requestInstall(in ParcelFileDescriptor distroFileDescriptor, in byte[] checkToken, 55 ICallback callback); 56 57 /** 58 * Requests uninstallation of the currently installed distro (leaving the device with no 59 * distro installed). 60 * 61 * @param checkToken an optional token provided if the uninstall was triggered in response to a 62 * {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent 63 * @param callback the {@link ICallback} to receive callbacks related to the 64 * uninstall 65 * @return zero if the uninstallation will be attempted; nonzero on error 66 */ 67 int requestUninstall(in byte[] checkToken, ICallback callback); 68 69 /** 70 * Requests the system does not modify the currently installed time zone distro, if any. This 71 * method records the fact that a time zone check operation triggered by the system is now 72 * complete and there was nothing to do. The token passed should be the one presented when the 73 * check was triggered. 74 * 75 * <p>Note: Passing {@code success == false} may result in more checks being triggered. Clients 76 * should be careful not to pass false if the failure is unlikely to resolve by itself. 77 * 78 * @param checkToken an optional token provided if the install was triggered in response to a 79 * {@link RulesUpdaterContract#ACTION_TRIGGER_RULES_UPDATE_CHECK} intent 80 * @param success true if the check was successful, false if it was not successful but may 81 * succeed if it is retried 82 */ 83 void requestNothing(in byte[] token, boolean success); 84 } 85
